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Playing catch up here. Nice work Sergio. Have you tried the nail-polish remover/filler method? I tried it and am sold
That canopy looks very challenging to mask, especially at 1/72 scale. Did it take you long?
Sergio, check out filling without sanding. NP removers are not pure acetone but emulsions of acetone and water plus girly stuff. A Q-tip moistened with a NP remover like Cutex will not harm styrene or resin. This also works with autobody filler (glazing putty). If you prefer Denatured Alcohol (mix of ethyl and Methyl Alcohol) also works.